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How can I loop through a string array and only get the value of the data attribute that is clicked on

I am trying to get from the <ul class="click-to-section"> to the tester class where I want to loop over the children that has data-section and only show it if it matches up with the <ul class="click-to-section">
See the screenshot of the HTML from Google Dev tools - https://ibb.co/Y3g1jmC
my code to show this is below:
$(".click-to-section li").click(function() {
$(this).each(function(){
let testdata = $(this).data('section');
let testdata2 = $(this).closest("main").next().next().children();
$(testdata2).each(function(){
const dataSection = $(this).data("section");
console.log(dataSection);
});
});
});
HTML
<ul class="click-to-section">
<li data-section="videos">Videos</li> **When this is clicked**
<li data-section="lo">Learning objectives</li>
<li data-section="credits">Credit</li>
<li data-section="toolkits">Toolkit</li>
</ul>
<div class="opinions"></div>
<div class="tester"> **Needs to traverse to this div and loop through the children to show the sections one at a time based on the data-section in the ul menu to equal the data-section here **
<div data-section="credits" class="js-tabs" style="display: none;"</div>
<section data-section="videos" class="js-tabs"></section>
<div class="js-tabs" data-section="lo" style="display: none;"></div>
<div data-section="toolkits" class="js-tabs" style="display: none;"></div>
</div>

Updated the code to click on li and show tester elements that matches data attributes of clicked li
Working Code below
$(".click-to-section li").on("click", function() {
var dataSection = $(this).attr("data-section");
$(".tester > *").hide();
$(".tester [data-section=" + dataSection + "]").show();
})
li {
cursor: pointer
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<ul class="click-to-section">
<li data-section="videos">Videos</li> **When this is clicked**
<li data-section="lo">Learning objectives</li>
<li data-section="credits">Credit</li>
<li data-section="toolkits">Toolkit</li>
</ul>
<div class="opinions"></div>
<div class="tester">
<div data-section="credits" class="js-tabs">cred </div>
<section data-section="videos" class="js-tabs">video</section>
<div class="js-tabs" data-section="lo">lo</div>
<div data-section="toolkits" class="js-tabs">js tabs</div>
</div>

How to open a bootstrap tabs using a link?

I have following bootstrap tabs code which is working when I click on the tab but I want to open the tab when I click on a link which I have created using ul > li > a
but unfortunately it's not working. how can i do this?
html code:
<ul>
<li>tab1</li>
<li>tab2</li>
</ul>
<div class="container">
<div class="tabbable">
<ul class="nav nav-tabs">
<li class="active">Section 1</li>
<li>Section 2</li>
</ul>
<div class="tab-content">
<div class="tab-pane active" id="tab1">
<p>I'm in Section 1.</p>
</div>
<div class="tab-pane" id="tab2">
<p>I'm in Section 2.</p>
</div>
</div>
</div>
</div>
Js Code:
<script>
// Javascript to enable link to tab
var hash = document.location.hash;
var prefix = "tab_";
if (hash) {
$('.nav-tabs a[href='+hash.replace(prefix,"")+']').tab('show');
}
// Change hash for page-reload
$('.nav-tabs a').on('shown.bs.tab', function (e) {
window.location.hash = e.target.hash.replace("#", "#" + prefix);
});
</script>

Give your <ul> a class name, like alt-nav-tabs, and then copy the existing navigation JS code. It would look something like this:
HTML:
<!-- Add class to your <ul> element -->
<ul class="alt-nav-tabs">
<li>tab1</li>
<li>tab2</li>
</ul>
<div class="container">
<div class="tabbable">
<ul class="nav nav-tabs">
<li class="active">Section 1</li>
<li>Section 2</li>
</ul>
<div class="tab-content">
<div class="tab-pane active" id="tab1">
<p>I'm in Section 1.</p>
</div>
<div class="tab-pane" id="tab2">
<p>I'm in Section 2.</p>
</div>
</div>
</div>
</div>
JS:
<script>
// Javascript to enable link to tab
var hash = document.location.hash;
var prefix = "tab_";
if (hash) {
$('.nav-tabs a[href='+hash.replace(prefix,"")+']').tab('show');
}
// Change hash for page-reload
$('.nav-tabs a').on('shown.bs.tab', function (e) {
window.location.hash = e.target.hash.replace("#", "#" + prefix);
});
// Copied (modify class selector to match your <ul> class): Change hash for page-reload
$('.alt-nav-tabs a').on('shown.bs.tab', function (e) {
window.location.hash = e.target.hash.replace("#", "#" + prefix);
});
</script>
Persistent tab visibility:
Based on the following comment, you have a tab that is showing no matter which tab is active...
one my give link I see that on a random tab a class called tab-visible
is added automatically.
To resolve this, you can use the following code to remove this class after the HTML loads:
<script>
$(document).ready(function() {
$('#tab-bem-estar-e-ambiente').removeClass('tab-visible');
});
</script>
Place this script in the <head> section, and you should be good to go!
Alternatively...
I noticed you tried to override the original tab-visible behavior. As it is now, the tab with the tab-visible class will never be visible, even when that tab is clicked on and active. If you never intend to use the tab-visible class on your tabs, you could just remove the style from the original CSS document here:
http://futura-dev.totalcommit.com/wp-content/themes/futura-child/style.css?ver=4.9.8
Find that CSS file in your hosted files, search for .tab-visible, and simply remove the class.

Load dropdown menu content in div using AJAX

My goal is to click in dropdown menu (div id=cssmenu) elements and display data in the using AJAX , so i made a small js code but i don't know how can i make it to load in the div i mentioned and erase the content that div displayed before.
html
<body>
<div class="container">
<div class="row">
<div class="col-md-3" >
<div id='cssmenu'>
<ul>
<li class='active'><span>Home</span></li>
<li class='has-sub'><a href='#'><span>About</span></a>
<ul>
<li><a href='#'><span>Project</span></a></li>
<li class='last'><a href='#'><span>Team</span></a></li>
</ul>
</li>
<li class='last'><a href='#'><span>News</span></a></li>
</ul>
</div>
</div>
<div class="col-md-9">
<div id="tabs">
<ul class="nav nav-tabs" id="prodTabs">
<li class="active"><a class="clickableLink" href="#tab_quick" data-url="http://localhost/bioinformatica/Main_page/Quick_search.html#qhelp">Quick Search</a></li>
<li><a class="clickableLink" href="#tab_advanc" data-url="#">Advanced Search</a></li>
<li><a class="clickableLink" href="#tab_struct" data-url="something3.txt">Structure Search</a></li>
</ul>
<div class="tab-content">
<div id="tab_quick" class="tab-pane active"></div>
<div id="tab_advanc" class="tab-pane active"></div>
<div id="tab_struct" class="tab-pane active"></div>
</div>
</div>
</div>
</div>
<div class="clearfix visible-lg"></div>
</div>
</div>
</body>
</html>
Javascript
$( document ).ready(function() {
$('#cssmenu a').click(function (e) {
e.preventDefault();
var url = $(this).attr("data-url");
var href = this.hash;
var pane = $(this);
// ajax load from data-url
$(href).load(url,function(result){
pane.tab('show');
});
});
});
For example in the Menu, when i click Home i would like it to load it's data-url attr in the div id=tabs , i.e, replacing all the contents by Home data-url. Thanks !

You can try the following:
$( document ).ready(function() {
$('#cssmenu a').click(function (e) {
e.preventDefault();
var url = $(this).data('url'); // this is the correct syntax
var pane = $(this);
$('#tabs').load(url, function(result){ // load the content directly to #tabs
pane.tab('show'); // display the tab
});
});
});

How to create a tab section in another tab?

i want to run tabs within tabs. this is the first tab section which is running without problems.
<div id="tabs2" class="tabs">
<ul>
<li class="skew-25 active">
<a class="skew25" href="#"> 1 tab</a>
</li>
<li class="skew-25"></li>
<li class="skew-25"></li>
</ul>
<div class="tabs-pane">
<div class="tab-panel active" style="display: block;"> 1 tab output</div>
<div class="tab-panel" style="display: none;">2 tab output</div>
<div class="tab-panel" style="display: none;">3 tab output</div>
</div>
</div>
Now I include another tab within the sections (called 'tab output') of the above:
<div id="tabs4" class="tabs tabs-vertical">
<ul>
<li class="skew-25 active">tab within tab section</li>
<li class="skew-25">
<a class="skew25" href="#"></a>
</li>
<li class="skew-25"></li>
</ul>
<div class="tabs-pane">
<div class="tab-panel active" style="display: block;">content</div>
<div class="tab-panel" style="display: none;"></div>
<div class="tab-panel" style="display: none;"></div>
</div>
</div>
this second code i include in '1 tab output' '2 tab output' and '3 tab output'
Problem is they will ether not send output, not available to choose or not active when apply to a tab in first tab. How to fix this?
Javascripts are:
function(e) {
if (!$(this).parent().hasClass('active')) {
e.preventDefault();
var ind = $(this).parent().index();
tabsUl.find('li').removeClass('active');
$(this).parent().addClass('active');
tabsPane.find('.tab-panel').fadeOut(0).removeClass('active');
tabsPane.find('.tab-panel').eq(ind).fadeIn(350).addClass('active');
return false;
} else {
return false;
}
}
and
f = v.handle = function(e) {
return typeof x === i || e && x.event.triggered === e.type ? t : x.event.dispatch.apply(f.elem, arguments)
}
normal
/* ================ Tabs. ================ */
$.fn.tabs = function(options) {
var defaults = {
direction: ''
};
var options = $.extend({}, defaults, options);
if(options.direction == "vertical"){
$(this).addClass('tabs-vertical');
}
var tabsUl = $(this).find(' > ul'),
activeTab = tabsUl.find('li.active').index(),
tabsPane = $(this).find('.tabs-pane');
tabsPane.find('.tab-panel').fadeOut();
tabsPane.find('.tab-panel').eq(activeTab).fadeIn();
tabsUl.find('li').find('a').click(function(e){
if(!$(this).parent().hasClass('active')){
e.preventDefault();
var ind = $(this).parent().index();
tabsUl.find('li').removeClass('active');
$(this).parent().addClass('active');
tabsPane.find('.tab-panel').fadeOut(0).removeClass('active');
tabsPane.find('.tab-panel').eq(ind).fadeIn(350).addClass('active');
return false;
}else{
return false;
}
});
}

Disable the div and all its contents with jQuery like so:
How to disable all div content
Also, instead of all that js code you can use jQueryUI Tabs or Bootstrap tabs (also explained here scroll down to the Toggable Tabs section at the bottom of the page).

Using Jquery to toggle class based on menu item clicked

Ok im working on this website where Id like to have the content of a div change to content based on the menu item clicked. I do not have pages for the different menu items but I have all the different content in divs in the index page. I would like to incorporate JQuery but I just cannot seem to find a way to link the menu item class or id to the corresponding div element. My code below":
<html>
<body>
<div class="navbar grid_12">
<ul>
<li class="btn" id="home">Home</li>
<li class="btn" id="about">About Me</li>
<li class="btn" id="gallery">Gallery</li>
<li class="btn" id="resume">Resume</li>
<li class="btn" id="contact">Contact Me</li>
</ul>
</div>
<div class="content-container">
<div class="bio content">
About me content
</div>
<div class="contact content">
Contact me content
</div>
<div class="gallery content">
gallery content
</div>
</div>
</body>
</html>
etc..
as for my JQuery coding so far this is where i am after hours of trying different things out
//Update Content-Container Div
$(document).ready(function(){
var $main = $(".content-container");
var $section = $(".content");
$("#about").click(function(){
$main.empty();
$main.find(".bio");
$(".bio").show();
});
});

Instead of writing individual handlers for each menu item, use a data-* attribute to refer to a particular content which need to be displayed, then in the click handler use that attribute to decide which content has to be displayed
<div class="navbar grid_12">
<ul>
<li class="btn" id="home">Home</li>
<li class="btn" id="about" data-target=".bio">About Me</li>
<li class="btn" id="gallery" data-target=".gallery">Gallery</li>
<li class="btn" id="resume">Resume</li>
<li class="btn" id="contact" data-target=".contact">Contact Me</li>
</ul>
</div>
<div class="content-container">
<div class="bio content">
About me content
</div>
<div class="contact content">
Contact me content
</div>
<div class="gallery content">
gallery content
</div>
</div>
then
$(document).ready(function () {
var $main = $(".content-container");
var $section = $(".content").hide();
$(".navbar li.btn").click(function (e) {
e.preventDefault();
$section.hide();
var target = $(this).data('target');
if(target){
$section.filter(target).show();
}
});
});
Demo: Fiddle

Check out jquery tabs,
I think you need this.
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI Tabs - Default functionality</title>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css">
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<link rel="stylesheet" href="/resources/demos/style.css">
<script>
$(function() {
$( "#tabs" ).tabs();
});
</script>
</head>
<body>
<div id="tabs">
<ul>
<li>Home</li>
<li>About Me</li>
<li>Gallery</li>
<li>Resume</li>
<li>Contact Me</li>
</ul>
<div id="tabs-1">
<p>Home content</p>
</div>
<div id="tabs-2">
<p>About me content</p>
</div>
<div id="tabs-3">
<p>Gallery content </p>
</div>
<div id="tabs-4">
<p>Resume content </p>
</div>
<div id="tabs-5">
<p>Contact Me content </p>
</div>
</div>
</body>
</html>

Try:
Assuming ids are associated with relevant classes.
HTML:
<li class="btn" id="bio">About Me</li>
JS:
$(".btn").click(function () {
$(".content-container .content").hide();
$(".content-container").find("."+$(this).attr("id")).show();
});
DEMO here.

Here I initially hid everything, then based on what links you click, the page displays the correct content. Note that your about page has the wrong id attribute so it will not work but your contact and gallery pages work. This is roughly how the twitter bootstrap framework works, I do suggest you look at that.
var $main = $(".content-container");
var $section = $(".content");
$section.hide();
$("li.btn").on('click', function() {
var link_id = $(this).attr('id');
var content = $main.find("." + link_id);
$section.hide();
content.show();
})
Working Example

const containers = Array.from(document.querySelectorAll('.content'));
// Slicing for link as it's not related to changing the slide content,
// so we don't want to bind behaviour to it.
const links = Array.from(document.querySelectorAll('.navbar ul .btn a')).slice(1);
$(function() {
hideEls(containers);
});
function hideEls (els) {
if (Array.isArray(els)) {
els.forEach(el => {
el.style.display = 'none';
});
}
return;
}
function showEl (els, i, e) {
e.preventDefault();
hideEls(els);
els[i].style.display = 'block';
}
links.forEach((link, i) => {
link.addEventListener('click', showEl.bind(null, containers, i));
});
Here's a fiddle